package com.yinxin.consumer;

//测试：生产者消费者模型-->利用缓冲区解决：<<管程法>>
//生产者，消费者，产品，缓冲区
public class consumerAndProductor {
    public static void main(String[] args) {
        //容器
        SynContainer synContainer = new SynContainer();
        //让生产者和消费者开始跑
        new Productor(synContainer).start();
        new Consumer(synContainer).start();
    }
}
//生产者
class Productor extends Thread {
    SynContainer container;
    public Productor(SynContainer container){
        this.container=container;
    }
    //生产
    @Override
    public void run() {
        for (int id = 0; id < 100; id++) {
            container.push(new Chicken(id));
            System.out.println("生产了"+id+"只鸡");
        }
    }
}

//消费者
class Consumer extends Thread {
    SynContainer container;
    public Consumer(SynContainer container){
        this.container=container;
    }
    @Override
    public void run() {
        for (int i = 0; i < 100; i++) {
            System.out.println("消费了-->"+container.pop().id+"只鸡");
        }
    }
}
//产品
class Chicken {
    int id;//产品编号
    public Chicken(int id) {
        this.id = id;
    }
}

//缓冲区
class SynContainer {
    //需要一个容器大小
    Chicken[] chickens = new Chicken[10];
    //容器计数器
    int count = 0;
    //生产者放入产品
    public synchronized void push(Chicken chicken) {
        //如果容器满了，就需要等待消费者消费
        if (count == chickens.length) {
            //通知消费者消费。生产等待
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        //如果没有满，我们就需要丢入产品
        chickens[count] = chicken;
        count++;
        //可以通知消费者消费了。
        this.notifyAll();
    }
    public synchronized Chicken pop() {
        //判断能否消费
        if (count == 0) {
            //等待生产者生产，消费者等待**
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        //如果可以消费
        count--;
        Chicken chicken = chickens[count];
        //通知生产者生产**
        this.notifyAll();
        //消费者消费产品
        return chicken;
    }
}